Nancy and collect coins Nancy has x coins. Bill has 7 coins fewer than four times the number of coins Nancy has. Write and simplify an expression for the total number of coins Nancy and Bill have

The bottom of ignacio's desktop is 74.5cm from the floor. ignacios sits in his adjustable chair, and the tops of his legs are 49.3cm from the floor. each clockwise rotation of the knob on the chair raises ignacio's legs by 4.8cm. write an inequality to determine the number of clockwise rotations, r, ignacio could make with the knob without his legs touching the desk.